ZETRON 025-9581M, Installation And Maintenance Manual

Page: 112 / 196

Installing the Station Transponder Units on Site
112 025-9581M
IP Connections
The network cable going to the Station Transponder Unit should terminate in an RJ-45
modular connector (the same 8-pin connector that would be used to connect to any
desktop computer). Plug this connector into the RJ-45 socket located next to the handset
connector on the bottom of the unit.
PA Audio Connections
All of the PA connections are made to terminal J3 on the transponder board. For this
reason, it is most convenient to bring the PA wring into the Station Transponder Unit
through the grommetted hole near the back of the case that is positioned between the fuse
holder and the 9-pin serial port connector.
The primary connections for basic PA operation are:
• PA Audio Com A - J3-pin 11
• PA Audio Com B - J3-pin 9
The orange plug can be removed from connector J3 in order to make it easier to attach the
wires.
The full list of signal connections for the PA function can be found under Connector J3
(PA) on page 148.
Figure 41 shows the connections made in a typical station that uses both a Model 6203 and
a Model 6204, and is using a VoIP Intercom unit in the Model 6203 to receive audio sent
from the dispatch center.
The connections made between the IP Interface card and connectors J5 and J4 of the
Model 6203 will normally be made at Zetron when the unit is built. The additional
connections to the Model 6204 and the PA system will be made on-site.